公开(公告)号：US20200295359A1

公开(公告)日：2020-09-17

申请号：US16753486

申请日：2018-09-18

Applicant: SHOWA DENKO K.K. ,  UMICORE

Inventor： Yasunari OTSUKA ,  Nobuaki ISHII ,  Nicolas MARX ,  Stijn PUT

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/62

Abstract: A negative electrode material for lithium ion secondary batteries, including composite material particles containing nanosilicon particles having a 50% particle diameter (Dn50) of 5 to 100 nm in a number-based cumulative particle size distribution of primary particles, graphite particles and an amorphous carbon material; the composite material particles containing the nanosilicon particles at a content of 30 to 60 mass % or less, and the amorphous carbon material at a content of 30 to 60 mass % or less; the composite material particles having a 90% particle diameter (DV90) in the volume-based cumulative particle size distribution of 10.0 to 40.0 μm, a BET specific surface area of 1.0 to 5.0 m2/g, and an exothermic peak temperature in DTA measurement of 830° C. to 950° C. Also disclosed is a paste for negative electrodes, a negative electrode sheet, a lithium ion secondary battery and a method for manufacturing the negative electrode material.

公开(公告)号：US20160181602A1

公开(公告)日：2016-06-23

申请号：US14909755

申请日：2014-08-04

Applicant: SHOWA DENKO K.K. ,  UMICORE

Inventor： Arihiro MUTOH ,  Hirokazu MURATA ,  Masataka TAKEUCHI ,  Jan GILLEIR ,  Kris DRIESEN ,  Stijn PUT

IPC: H01M4/48 ,  H01M4/583 ,  H01M10/0525

Abstract: A production method for a composite of fine particles (A) and carbon particles (B), including the steps of: mixing fine particles (A) formed of a substance comprising at least one kind of Si, Sn, Al, Ge and In; and molten pitch, to obtain a mixture (1); pulverizing the mixture (1) to obtain a pulverized product (2a); dry-mixing the pulverized product (2a) and carbon particles (B) to obtain a mixture (3a); and firing the mixture (3a), followed by pulverization; or including the steps of: adding carbon particles (B) to the mixture (1), followed by dry mixing and pulverizing, to obtain a pulverized product (2b); and firing the pulverized product (2b), followed by pulverization.

Abstract translation: 一种微粒（A）和碳粒（B）的复合体的制造方法，其特征在于，包括：由包含Si，Sn，Al，Ge和In中的至少一种的物质形成的微粒（A） 和熔融沥青，得到混合物（1）; 粉碎混合物（1）以获得粉碎产物（2a）; 将粉碎物（2a）和碳粒子（B）干混，得到混合物（3a）; 并烧制混合物（3a），然后粉碎; 或者包括以下步骤：向混合物（1）中加入碳颗粒（B），然后干混和粉碎，得到粉碎产物（2b）; 烧成粉碎物（2b），进行粉碎。

公开(公告)号：US20220209223A1

公开(公告)日：2022-06-30

申请号：US17672785

申请日：2022-02-16

Applicant: Umicore ,  Showa Denko K.K.

Inventor： Stijn PUT ,  Dirk VAN GENECHTEN ,  Jan GILLEIR ,  Nicolas MARX ,  Arihiro MUTO ,  Nobuaki ISHII ,  Masataka TAKEUCHI

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/134 ,  C01B33/03 ,  C01B32/00 ,  C01B33/027 ,  H01M10/0525

Abstract: Powder comprising particles comprising a matrix material and silicon-based domains dispersed in this matrix material, whereby the matrix material is carbon or a material that can be thermally decomposed to carbon, whereby either part of the silicon-based domains are present in the form of agglomerates of silicon-based domains whereby at least 98% of these agglomerates have a maximum size of 3 μm or less, or the silicon-based domains are not at all agglomerated into agglomerates.

公开(公告)号：US20180013137A1

公开(公告)日：2018-01-11

申请号：US15538698

申请日：2015-10-15

Applicant: Umicore ,  Showa Denko K.K.

Inventor： Stijn PUT ,  Dirk VAN GENECHTEN ,  Jan GILLEIR ,  Nicolas MARX ,  Arihiro MUTO ,  Nobuaki ISHII ,  Masataka TAKEUCHI

IPC: H01M4/36 ,  H01M4/38 ,  C01B33/027 ,  H01M10/0525

CPC classification number: H01M4/364 ,  C01B32/00 ,  C01B33/027 ,  C01B33/03 ,  C01P2004/03 ,  C01P2004/50 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/14 ,  H01M4/134 ,  H01M4/362 ,  H01M4/386 ,  H01M10/0525

Abstract: Powder comprising particles comprising a matrix material and silicon-based domains dispersed in this matrix material, whereby the matrix material is carbon or a material that can be thermally decomposed to carbon, whereby either part of the silicon-based domains are present in the form of agglomerates of silicon-based domains whereby at least 98% of these agglomerates have a maximum size of 3 μm or less, or the silicon-based domains are not at all agglomerated into agglomerates.

公开(公告)号：US20160190552A1

公开(公告)日：2016-06-30

申请号：US14909762

申请日：2014-08-04

Applicant: SHOWA DENKO K.K. ,  UMICORE

Inventor： Hirokazu MURATA ,  Masataka TAKEUCHI ,  Nobuaki ISHII ,  Sam SIAU ,  Nicolas MARX ,  Stijn PUT

IPC: H01M4/36 ,  H01M4/48 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/587

CPC classification number: H01M4/364 ,  C01B32/05 ,  C01B32/20 ,  H01M4/134 ,  H01M4/366 ,  H01M4/386 ,  H01M4/587 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/027 ,  Y02T10/7011

Abstract: The present invention relates to a negative electrode material for a lithium ion battery, made of a composite material comprising silicon-containing particles, artificial graphite particles and a carbon coating layer, wherein the silicon-containing particles are silicon particles having a SiOx layer (0

Abstract translation: 本发明涉及一种锂离子电池用负极材料，其由包含含硅颗粒，人造石墨颗粒和碳涂层的复合材料制成，其中含硅颗粒为具有SiO x层（0 在颗粒表面上的氧含量比为1质量％以上且18质量％以下，主要包含一次粒径为200nm以下的粒子， 并且人造石墨颗粒具有鳞片状形状。 通过使用负极材料，可以制造具有高电容性和优异的充放电循环特性的锂离子电池。

公开(公告)号：US20170352877A1

公开(公告)日：2017-12-07

申请号：US15538706

申请日：2015-12-11

Applicant: Umicore ,  Showa Denko K.K.

Inventor： Stijn PUT ,  Dirk VAN GENECHTEN ,  Kris DRIESEN ,  Jin HU ,  Yvan STRAUVEN ,  Arihiro MUTO ,  Nobuaki ISHII ,  Masataka TAKEUCHI

IPC: H01M4/36 ,  H01M10/04 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/38

CPC classification number: H01M4/364 ,  H01M4/386 ,  H01M4/625 ,  H01M10/0413 ,  H01M10/0525

Abstract: Composite powder for use in an anode of a lithium ion battery, whereby the particles of the composite powder comprise silicon-based domains in a matrix, whereby the individual silicon-based domains are either free silicon-based domains that are not or not completely embedded in the matrix or are fully embedded silicon-based domains that are completely surrounded by the matrix, whereby the percentage of free silicon-based domains is lower than or equal to 4 weight % of the total amount of Si in metallic or oxidized state in the composite powder.

公开(公告)号：US20210159481A1

公开(公告)日：2021-05-27

申请号：US16332421

申请日：2017-09-11

Applicant: Umicore ,  Umicore Korea Ltd.

Inventor： Jean-Sébastien BRIDEL ,  Stijn PUT ,  Dongjoon IHM ,  Daniël NELIS

IPC: H01M4/131 ,  H01M4/134 ,  H01M4/133 ,  H01M4/525 ,  H01M4/505 ,  H01M4/38 ,  H01M10/0525

Abstract: A rechargeable electrochemical cell comprising a negative electrode and a positive electrode is described. The positive electrode comprises a product having as overall formula Lip(NixMnyCozMmAlnAa)O2±b, wherein M signifies one or more elements from the group Mg, Ti, Cr, V and Fe, wherein A signifies one or more elements from the group F, C, Cl, S, Zr, Ba, Y, Ca, B, Sn, Sb, Na and Zn, and wherein 0.9

公开(公告)号：US20200321609A1

公开(公告)日：2020-10-08

申请号：US16753429

申请日：2018-09-12

Applicant: Umicore ,  Umicore Korea Ltd.

Inventor： Stijn PUT ,  Daniël NELIS ,  Jean-Sébastien BRIDEL ,  Jeong-Rae KIM

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/38 ,  H01M10/0567 ,  H01M4/62 ,  H01M4/134 ,  H01M4/587

Abstract: A lithium ion battery comprising a negative electrode and an electrolyte, whereby the negative electrode comprises composite particles, whereby the composite particles comprise silicon-based domains, whereby the composite particles comprise a matrix material in which the silicon-based domains are embedded, whereby the composite particles and the electrolyte have an interface, whereby at this interface there is a SEI layer, characterized in that the SEI layer comprises one or more compounds having carbon-carbon chemical bonds and the SEI layer comprises one or more compounds having carbon-oxygen chemical bonds, whereby a ratio, defined as the area of a first peak divided by the area of a second peak, is at least 1.30, whereby the first peak and second peak are peaks in an X-ray photoelectron spectroscopy measurement of the SEI, whereby the first peak represents C—C chemical bonds and whereby the second peak represents C—O chemical bonds.

公开(公告)号：US20160233490A1

公开(公告)日：2016-08-11

申请号：US14903066

申请日：2014-07-03

Applicant: UMICORE

Inventor： Stijn PUT ,  Jean-Sebastien BRIDEL ,  Nathalie DELPUECH ,  Bernard LESTRIEZ ,  Philippe MOREAU ,  Nicolas DUPRE

IPC: H01M4/36 ,  H01M4/134 ,  H01M4/48 ,  H01M4/131 ,  H01M4/62 ,  H01M4/38

CPC classification number: H01M4/366 ,  C01B33/02 ,  H01M4/131 ,  H01M4/134 ,  H01M4/386 ,  H01M4/483 ,  H01M4/622 ,  H01M2004/021 ,  H01M2004/027

Abstract: The invention relates to a powder comprising particles containing a core and a shell, said powder preferably having a surface area (BET) of at most 50 m2/g, said core containing silicon (Si) and said shell containing silicon oxide SiOx with 0

Abstract translation: 本发明涉及包含含有核和壳的颗粒的粉末，所述粉末优选具有至多50m 2 / g的表面积（BET）至多为50m 2 / g，所述芯含有硅（Si），所述壳含有氧化硅SiO x， x≤2，其中所述氧化硅含有n为1至4的整数的Sin +阳离子，其中所述氧化硅含有相对于总量的至少70mol％的Si 4+阳离子。

公开(公告)号：US20220352493A1

公开(公告)日：2022-11-03

申请号：US17767107

申请日：2020-10-05

Applicant: UMICORE

Inventor： Boaz MOEREMANS ,  Kun FENG ,  Michal TULODZIECKI ,  Jean-Sébastien BRIDEL ,  Nicolas MARX ,  Stijn PUT

IPC: H01M4/131 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/1395

Abstract: A powder for use in a negative electrode of a battery, said powder comprising particles, wherein the particles comprise a carbonaceous matrix material and silicon-based domains dispersed in the carbonaceous matrix material, wherein the particles further comprise pores wherein at least 1000 cross-sections of pores comprised in a cross-section of the powder satisfy optimized conditions of size and size distribution, allowing the battery containing such a powder to achieve a superior cycle life and a production method of such a powder.